Troubleshooting; Technical Data - Hughes & Kettner Edition Blue 60-R Series Service Documents

EDITION BLUE 60-R-MANUAL

6.0 TROUBLESHOOTING

1) The EDITION BLUE 60-R will not switch on:
• The amp is not getting any AC power. Check the
mains cable to see if it is connected properly.
• The mains fuse is defective. Replace the fuse with
another identical fuse. If this fuse also trips, consult
your Hughes & Kettner dealer.
2) The EDITION BLUE 60-R is connected properly,
but no sound is audible.
• One or several GAIN and MASTER controls may be
turned all the way down. Dial in a higher setting.
• A short circuit in the speaker signal chain may have
tripped an internal fuse. Make sure none of the
connections are shorted out and have a qualified
service technician replace the fuse (identical
specifications are a must).
3) The footswitch does not switch channels:
• The front panel selector switch may be in the LEAD
position. Set it to CLEAN (in this case, CLEAN = off).
• The footswitch is not connected to the EDITION BLUE
60-R. Plug it into the appropriate jack.
4) When accessed, the LINE OUT/LINE IN jacks
cause annoying hum.
• An electrical or magnetic field is causing interference.
Use higher-quality cables or re-arrange the cables you
are using to reduce interference to a minimum. If this
still doesn't improve the situation, use a DI box.
• The grounding of the connected devices may be
causing a ground loop. DO NOT SEVER THE GROUND
OF THE CONNECTED DEVICES UNDER ANY CIRCUM-
STANCES! Try plugging all devices into the same socket
via an AC power distributor/power strip. If this doesn't
eliminate the noise, you must ensure the connection is
galvanically separated by routing the signal through a
DI box.
5) You have connected an FX processor to the LINE
OUT jack and the signal is totally distorted, even
when you have dialed in a clean sound.
• The LINE OUT signal is overloading the input of the FX
processor. Reduce the processor's input sensitivity
("INPUT" or "GAIN").
6) You have connected an FX processor to the LINE
OUT jack of the EDITION BLUE 60-R and the
signal's volume level is way too low.
• The FX processor's output level is set incorrectly. Turn it
up.
8

7.0 TECHNICAL DATA

PREAMP SECTION
CLEAN + LEAD solid state channels
INPUT: -10 dBV/ 1 M ohm
LINE IN: -6dBV/ 50 k ohms
LINE OUT: 0 dBV/ 1k ohm
POWER AMP SECTION:
'CURRENT FEEDBACK' solid state power amp
Output Power: 60 watts rms into 8 ohms
Freqency response:
20 Hz - 30 kHz (into 8 ohms)
Speaker: RockDriver Junior, 12", 8 ohms
GENERAL FEATURES:
Voltage: 230 V~ (European model)
117 V~ (North American model)
100 V~ (Japanese model)
Max. power consumption:
Mains Fuse: T 250 mA (230 V model)
T 500 mA (117 V model)
T 630 mA (100 V model)
Dimensions: (W x H x D)
480 x 490 x 275 mm
19" x 19.25" x 11"
Weight: approx. 29 Lbs./approx.13 kgs
70 VA